Sleeve valve



July 1, 1930. c. Y. KNIGHT SLEEVE VALVE Filed 001;. ,6. 1922v der beingconstructed of a material which vide for'contraction and expansionthereof Patented July 1., Q Q I I i idii7tieat r CHARLES Y. -KNIGHT, OFPASADENA, CALIFDB-NIAfASSIGNOR TO THE KNIGHT AMEEI-r CAN PATENTSCOMPANY, OF CHICAGO, ILLII TOIS, A CORPORATION OF DELAWARET sLnEvEVALVE" Application filed October 6, 1922. Serial No. 592,913.

The present invention relatesv to a novel die-castingto be made when ametal core is combination in a sleeve valve type of internal required aswill be apparent to those skilled combustion engine, of a sleevecomposed ofwin the art, the slit'forming a means whereby such a-materialand so constructed that the the core maybe removed. The slit 15 alsosame may be die-cast, and may also aiiord provides meansto'permitexpansion and cona materially increased means for conveying traction ofthe samewhen used with the cast heat to the cylinder, to be'dissipatedthereby, iron cylinder 16, the coeiiicientof expansion by the use ofwater jackets or. air cooling of cast iron being different} from that ofmeans. aluminum.

vide, for example, an aluminum outer sleeve plurality ofslitsv isprovided, slit 15 terminat adapted to be so constructed that it may being within a suitable distance from either employed between the castiron inner sleeve endot the cylinder and being providedwith of the wellknown Knight type of double separate additional'slits 18 and'l9extending is sleeve valve internal combustion engine,'so from each endof the cylinder inwardly 'a constructed as to permit relative movementdistanceto over-lap the centrallongitudinal of the aluminum sleeve dueto variations in slit but spaced therefroma suitabledistance.contraction and expansion as compared with The embodiment of theinvention using a the cast iron inner sleeve and water jacket sleeve,illustrated in Fig. 8,1nay be used where as or cylinder. I a metal corejisnot'needed andthe slits 15,,

A further object. ofthis invention is to 18'a'nd 19 may be made in" eachinstance'if v provide a suitable longitudinal slit in the desired"either before or after casting It sleeve composed of the material suchas will be noted" that by employing afmetalaluminum whichcan be die-castwhen a metal which may be die-cast the production of a 25 core isrequired in the die casting operation, Knight type of engine may begreatly facilie Various other objects are within the scope tated and atthe same time'a 'metal of this of this invention such as relate to thearcharacter forms a more ready means of heat rangement of the relatedelements or the dissipation. structure, and to various detailsofconstruc- -It is apparent that, within the spirit of .1) tion and toeconomies of manufacture and theinvention modifications and diii'erent.ar

numerous other features as will be apparent rangements may be made otherthan as herefrom consideration of the drawing and rein disclosed, andthe present disclosure is lat-ed description of a form of the invention,illustrative merely, the invention comprewhich may be preferred, inwhich hending all variations thereof.

35 Fig. 1 is an isometric view illustrating one I claim: 1 785-embodiment of the invention. 1. In. a sleeve valve type internal combus-Fig. 2 is an illustration of a modification tion engine, a cylinder, apiston and inner thereof. sleeve of cast iron and an outer sleeve of aFig. 3 is a sectional view of the adaptation material which may bedie-cast in a mold,

4c of the invention to a Knight type of sleeve said outer sleeve beinglocated between the valve internal combustion engine. inner sleeve andthe cylinder, said cylinder,

Referring to Fig. 1 it will be seen that I inner sleeve and outer sleevehaving suitable have provided a cylinder 10 having suitable intakeandexhaust ports located therein, said intake or exhaust ports 11 and12, the cylins outer sleevebeing longitudinally slitto pro.-

may be die-cast in a mould, such as by using at a different rate withrespect to t'lieeontra e aluminum for example, and'the same being tionand expansion oftheicontacting 'surprovided in the'elnbodimentillustrated'in faces. I I

Fig. 1, with a longitudinal slit 15 which may 2. In a sleeve valve typeinternal 'combus- 50 servetwo purposes. The slit l5 enables the tionengine, a cylinder, a piston, an inner IOU One object of the inventionis to pro- I In the modification illustrated in Fig. 3 a e0 sleeve, saidpiston and inner sleeve being of a metal other than aluminum and anouter sleeve of aluminum provided With a longitudinal slit to permittransverse contraction and expansion, said cylinder, inner sleeve andouter sleeve having suitable intake and exhaust ports located therein. 7

3. In a sleeve valve type internal combustion engine, a cylinder, apiston, an inner sleeve of onematerial and an outer sleeve of adiflerent material, provided With a longitudinal slit to permittransverse contraction and expansion, said cylinder, inner sleeve andouter sleeve having suitable intake and exhaust ports located therein.

'4. In an internal combustion engine of the; sleeve valve type, thecombination of a cylinder and reciprocating inner and outer.

sleeves coaxial therewith, said outer sleeve being made of materialhaving a higher coefficient of expansion than the material of said innersleeve, and means for permitting the self-adjustment of said outersleeve to compensate for such difference in expansion. 5. In an internalcombustion engine of the sleeve valve type,the combination of a cylinderand reciprocating inner and outer sleeves coaxial therewith, said outersleeve being madeof light Weight material having a high- 7 ercoeflicient of expansion than said inner sleeve, and means forpermitting the seli-ad justment of said outer sleeve to compensate forsuch difierence in expansion.

;6. In an internal combustion engine of the sleeve valve type, thecombination of a cylinder and reciprocating innerand outer sleevescoaxial therewith, said cylinder and inner sleeves being made of castiron, and said outer sleeve being made of aluminum, and

means for permitting the self-adjustment of 7 said outer sleeve tocompensate for the different rates of expansion of said sleeves' 7. Inan internal combustion engine of the sleeve valve type, the combinationof a cylinder and reciprocating inner outer sleeves coaxial therewith,said outer sleeve being -made of material having a higher coeflicient ofexpansion'than said inner sleeve and being longitudinally slit to permitthe self-adjustment of said outer sleeve to compensate for suchdifferencein expansion, 7

.8. In an internal combustion engine of the sleeve valve type, thecombination of a cylinderand reciprocating innerva-nd outer sleevescoaxial therewith, said cylinder and inner sleeve being made ofcast ironandsaid outer sleeve being made, of aluminum and longitudinally slit topermit the self-adjustment of said outer sleeve to compensate for thedifferent rates of expansion of said inner and. outer sleeves. V

' testii ny vvhereof, I affix my signature.

CHARLES Y." KNIGHT;

